Welding apparatus



W- McKEE.

WELDING APPARATUS. APPLICATION FILED MAR. 22, I919.

. 1,420,720. Patented June 27, 1922p 3nventor WIL L15 M-KEB.

umrso smrss PATENT OFFICE.

WILLIS MOHEE, OF CLEVELAND, OHIO, ASSIGNOR TO THE ELYRIA IRON & STEEL COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

WELDINO APPARATUS.

I '0 all whom it mag concern:

Be it known that I, WILLIS McKnE, a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, State of torches such as arewuse'd ingas welding processes, and has for one of its objects the simplification and cheapening of the construction of devices of this character withany out reducing their eiiiciency.

Another object'of the invention is, to provide a deviceof the kind described in which the parts are accessible and may be readily assembled and disassembled. 5

,Other objects and the features of novelty will be apparent from the following description, taken in connection with panying drawings, of which; i'

Figure 1 is a side elevation of apparatus embodying the invention, with certain parts shown in section;

the accom- Figure 2 is a section on the line 22 0f F i re 1; and

igure 3.1% a fragmentary section showing the modification. 4

Referring to the drawings, 10 indicates a head block which may be supported 1n suitable manner and which has a threaded bore 11 extending therethrough, and a threaded recess 12 the axis of which is preferably parallel to the axis of the bore 11. A passage 13 extends through the head block and has its outer end closed by means of a plug 14 and its inner end in communication with the bore 11. A passagelfi extends from the recess 12 to the passage 13.

A gas supply connection 16 is secured 1n the recess 12 and the flow'of gas is controlled by means of a valve 17. A barrel 18, having its middle portion externallythreaded, 1s

' secured in the bore 11 and projects from opposite sides of the head block- 10. A projection on one side of the head block has,

connected thereto a gas supply pipe'.19 and of any preferred'construction. A passage 23 conducts the gas from the pipe 19 to the the projection on the opposite side is. provided with a mixing chamber 20 and 'aconnection 21 for the tip 22, the latter being chamber 20, and'one or more radially extending'passages 24 establish communlcation between the chamber 20 and the groove 25 Specification of Letters latent.

Patented June 27, 1922.

Application filed March 22, 1919. Serial 1%. 284,410.

on the exterior of the barrel 18, and in alignment wltn the passage 13, for the purpose of conducting gas from the latter to the chamrection, through passage 23, there is a much position the barrel and make a tight better mixture of the gases and a more uniform flame with greater economy of the gases results than when the gas supplies are reversed.

Referrin to' Figure 3, it will be noted that a modification of the construction above described is shown, and in this construction the barrel 20, shown in Figure 1, is made in two pieces 30 and 31, respectively,-which are threaded into the'bore 11 from opposite sides of the head block and which are pro-- 5 vided with positioning shoulders 32 and are.

of such length as to provide a small space 33- between their adjacent ends in alignment with the passage 13. In other respects this construction may be the same as that shown in Figure 1.

While I have illustrated and described what I now consider the preferred form of my invention, I desire to have it understood that many obvious changes in the details may be made without departing from the spirit of the invention as defined in the appended claims,

Having thus described my invention, what Iclaimis; Y f

'1. In apparatus of the class described, a head block having a threaded opening extending through enema, a threaded bore adjacent its other end, the axis whereof is substantially parallel with that of the opening, and a passage connecting the bore and opening, a supply connection screwed into sald bore and a barrelhaving a threaded portion intermediate =its ends screwed into said opening, said threaded portionbeing grooved cirvumferentially in theplane of the aforesaid passage the barrel having a longitudinal bore enlarged throughout :1 art of its length to provide a mixing chamer, and one or more passages leading from said ove into the mixing chamber.. j

2, Ii iapparatus of 'theclass' d'escribed, a

head block having a threaded opening and a passage communicating therewith, a gas supply connection -With said passage, and ineans secured in said threaded openlng and projecting on opposite sides of said block, the projection on one side of the block being provided With a mixing chamber and a welding tip connection, and the projection on the other side of the block having a gas as supply passage, and both of said passages being in communication with said chamber.

3. In apparatus of the class described, a head block, a member having a mixing chamber carried by said block, a combustible gas supply arranged to deliver the gas longitu dinally of said chamber, and an oxygen supply passage arranged in said head block transversely of said chamber to supply gas laterally into the current of incoming combustible gas.

In testimony whereof I alfix my signature. 

